Methanol fuel engine low temperature start-up device and its control method

A methanol fuel and starting device technology, which is applied in engine control, machine/engine, electrical control, etc., can solve the problem of difficulty in mixing methanol fuel and air uniformly, and solve the problem of difficult starting at low temperature, convenient operation, control and processing. Create simple effects

Active Publication Date: 2009-12-23
CHERY AUTOMOBILE CO LTD
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  • Claims
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Problems solved by technology

This patent adopts the method of heating the air to solve the problem of starting at low temperature. When starting, it needs to wait for a period of time to start, and it is difficult to ensure the uniform mixing of methanol fuel and air and ideal evaporation, so there are still technical defects

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  • Methanol fuel engine low temperature start-up device and its control method
  • Methanol fuel engine low temperature start-up device and its control method

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Embodiment Construction

[0025] Below, referring to the accompanying drawings, through the description of the embodiments, the specific embodiments of the present invention, such as the shape and structure of the various components involved, the mutual position and connection relationship between the various parts, the function and working principle of the various parts, and the manufacturing Processes, operations, and control methods are described in further detail to help those skilled in the art have a more complete, accurate and in-depth understanding of the inventive concepts and technical solutions of the present invention.

[0026] like figure 1 The structure of the present invention expressed, the present invention is a kind of methanol fuel engine low-temperature starting device, is located on the fuel supply system of methanol fuel engine, and described fuel supply system comprises engine 5, engine electronic control unit 3, methanol main fuel tank 1. Methanol oil pump 2 and methanol fuel in...

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Abstract

The invention discloses a low-temperature starting device for a methanol fuel engine. The methanol fuel engine is also provided with a gasoline supply device (9), including a gasoline small fuel tank (6), a gasoline pump (7), a gasoline injector (8), and a gasoline pump The oil inlet of (7) is communicated with gasoline small fuel tank (6), and its oil outlet is communicated with gasoline injector (8), and gasoline injector (8) is communicated with engine (5) cylinder. The invention also discloses a control method for the low-temperature starting device. The control modes are divided into a low-temperature gasoline starting mode, a switching mode between low-temperature starting and normal operation, a normal temperature starting mode and a normal operating mode. The invention ensures that the engine can be successfully started at a relatively low temperature, solves the problem that the methanol engine is difficult to start at low temperature, has obvious effects, simple control and manufacturing, convenient operation, easy realization and low production cost.

Description

technical field [0001] The invention belongs to the technical field of automobile structure, and relates to the power system of the automobile, more specifically, the invention relates to a low-temperature starting device for a methanol fuel engine. The present invention also relates to the control method adopted by the methanol fuel engine low-temperature starting device. Background technique [0002] Fuels derived from petroleum, such as gasoline and diesel, are non-renewable and their resources will eventually be depleted. In order to reduce the dependence on petroleum fuels, various renewable alternative fuel engines have been developed in automobile products, among which the most promising one is the automobile engine using methanol fuel, because methanol is made from plants fuel, and can be artificially planted in large quantities. [0003] Since methanol fuel is a biological product, its physical and chemical properties are very different from gasoline. One of the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02D45/00
Inventor 张小彬
Owner CHERY AUTOMOBILE CO LTD
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